Does salt water intrusion constitute a mercury contamination risk for coastal fresh water aquifers?

被引:25
|
作者
Protano, G [1 ]
Riccobono, F [1 ]
Sabatini, G [1 ]
机构
[1] Univ Siena, Ist Geochim Ambientale & Conservazione Patrimonio, I-53100 Siena, Italy
关键词
mercury; groundwater contamination; sail water intrusion; coastal aquifers;
D O I
10.1016/S0269-7491(99)00317-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Four different sampling surveys were carried out in 1998 to evaluate the possible causes of severe mercury contamination involving many wells spread over a vast territory along the coast of southern Tuscany (Italy). Several samples of groundwater and coastal sea water were collected to determine the Hg, Cl, Ar, He and N contents. Anthropogenic or deep-seated sources of the Hg involved in the contamination event can be excluded. The observed coupling of Hg pollution with progressive salt water intrusion along the coastal aquifer indicates a close causal relation between these two phenomena. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:451 / 458
页数:8
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